The Race Tech Shock Spring 6.3 kg/mm is a precision-engineered suspension component designed to deliver consistent performance for compatible Yamaha off-road motorcycles. Manufactured by Race Tech, this high-performance spring is developed with a high stiffness-to-mass ratio, providing lightweight construction for its specific spring rate. The result is responsive suspension performance with the durability required for demanding motocross, enduro, and off-road riding.
Designed for riders who want to fine-tune rear suspension behavior, this spring helps support accurate setup based on rider weight, riding style, and terrain. The 6.3 kg/mm rate is intended for applications requiring increased or precisely matched rear shock support. For correct spring-rate selection and setup guidance, consult Race Tech resources at www.racetech.com before installation.
Manufacturer: Race Tech. Vendor Part Number: SRSP 652863. This shock spring fits the 2015, 2016, 2017, 2018, and 2019 Yamaha YZ250FX, the 2016, 2017, and 2018 Yamaha YZ450FX, the 2005 Yamaha YZ450F, and the 2024 Yamaha YZ450FX. Verify the motorcycle model year and suspension specifications before ordering to ensure proper fitment.
Features:
- High stiffness-to-mass ratio supports lightweight, responsive suspension performance
- Precision-manufactured by Race Tech using high-quality materials and processing
- 6.3 kg/mm spring rate for rear shock suspension tuning
- Designed for compatible Yamaha YZ250FX, YZ450FX, and YZ450F applications
- Consult Race Tech for proper spring-rate selection based on rider and motorcycle setup
Fitment:
2005 Yamaha YZ450F
2015 Yamaha YZ250FX
2016 Yamaha YZ250FX
2016 Yamaha YZ450FX
2017 Yamaha YZ250FX
2017 Yamaha YZ450FX
2018 Yamaha YZ250FX
2018 Yamaha YZ450FX
2019 Yamaha YZ250FX
2024 Yamaha YZ450FX